ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,730,217, issued on Sept. 8, was assigned to Honeywell International Inc. (Charlotte, N.C.).

"Landing navigation based on radar altimeter and multi-echoes RF beacons" was invented by Tomas Beda (Prague), Jan Reznicek (Prague), Petr Kejik (Brno, Czech Republic), Jan Lukas (Brno, Czech Republic), Vibhor L. Bageshwar (Rosemount, Minn.) and Pavel Ptacek (Rosice, Czech Republic).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes providing a radar sensor onboard a vehicle, and one or more active radar beacons around a landing site. Each beacon produces a pattern of one or more artificial echoes that is different from a pattern of echoes produced b...